From 85c9cf8a9dbd3685d386555252f63ed9626a7c4b Mon Sep 17 00:00:00 2001
From: user <user@example.com>
Date: Mon, 17 Aug 2026 10:21:24 +0800
Subject: [PATCH] modified:   31.cpp

---
 31.cpp | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/31.cpp b/31.cpp
index fd4dacf..882e0ca 100644
--- a/31.cpp
+++ b/31.cpp
@@ -10,10 +10,10 @@ void in()
 {
     for (int i = 0; i < 4; ++i)
     {
+        string s;
+        cin >> s;
         for (int j = 0; j < 4; ++j)
-            if (getchar() == '+')
-                dddd[i][j] = 1;
-        getchar();
+            dddd[i][j] = (s[j] == '+');
     }
 }
 void dfs(int x, int y)